If F is a foliation of an open set $\Omega \subset \mathbb{R}^n$ by smooth (n - 1)-dimensional surfaces, we define a class of functions B(Ω, F), supported in Ω, that are, roughly speaking, smooth ...
IT is well known that Dirichlet made a new start in the theory of numbers by bringing it into connection with certain analytical functions of the form??? being an integer, and s a h real quantity. In ...